Review of organic Rankine cycles for internal combustion engine exhaust waste heat recovery

Sprouse, Charles; Depcik, Christopher

doi:10.1016/j.applthermaleng.2012.10.017

Cited by 395 publications

(160 citation statements)

References 44 publications

Supporting

Mentioning

160

Contrasting

Order By: Relevance

“…Other options for WHR include the relatively smaller amounts of heat available from an exhaust gas recirculation (EGR) cooler and charge air cooler (CAC) [7]. Despite the similar energy amount available on primary sources, exhaust and coolant, the higher temperature of the ICE exhaust makes it thermodynamically more attractive for heat to power conversion.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of an Evaporator Heat Exchanger for a Rankine Cycle Vehicle Waste Heat Recovery System

Santos¹,

Pires²,

Caseiro³

et al. 2015

JOCET

View full text Add to dashboard Cite

Abstract-This article presents a Rankine cycle (RC) system as an additional power generation process, which uses the waste heat of a vehicle equipped with an internal combustion engine (ICE). A brief review of different heat recovery technologies leads to the identification of the RC system as a favorable solution for vehicle applications. The paper focuses on the performance evaluation of the evaporator heat exchanger (HEX) that is suitable for ICE waste heat recovery. The HEX performance depends on several parameters such as its structure, heat transfer area and temperature difference between hot gas and the RC working fluid. The investigated HEX is a cross-flow heat exchanger, simple and robust, with the working fluid circulating inside the tubes. A test bench that includes the vehicle and the RC system that uses water as working fluid, has been built in order to measure the HEX performance. A detailed description of the experimental setup is presented. Finally, test bench measurements of the applied vehicle coupled with the HEX fitted on the RC system were carried out.Index Terms-Waste heat recovery, Rankine cycle, evaporator heat exchanger, experimental results.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental Study of an Evaporator Heat Exchanger for a Rankine Cycle Vehicle Waste Heat Recovery System

Santos¹,

Pires²,

Caseiro³

et al. 2015

JOCET

View full text Add to dashboard Cite

show abstract

“…Some overviews of waste heat recovery studies and applications, for internal combustion engines using ORC, are reported by Sprouse and Depcik [1] and by Wang et al [2].…”

Section: Introductionmentioning

confidence: 99%

A thermodynamic feasibility study of an Organic Rankine Cycle (ORC) for heavy-duty diesel engine waste heat recovery in off-highway applications

Lion

Michos

Vlaskos

et al. 2017

Int J Energy Environ Eng

View full text Add to dashboard Cite

This work assesses the possibility of fitting an organic Rankine cycle (ORC) system in a commercial agricultural tractor, recovering waste heat from a 300-kW brake power heavy-duty diesel engine. Two different cycle architectures are considered: a single evaporator layout to recover tail-pipe exhaust heat, and a parallel evaporator configuration to recover both exhaust and exhaust gas recirculation (EGR) heat. A second lower-temperature cooling circuit is also considered as possible different heat sink for the ORC system. Ten different working fluids have been assessed, and the optimum system configuration, in terms of fuel consumption, has been obtained applying an optimization algorithm to a process simulation model. A preliminary study has been carried out to evaluate the impact of the ORC system on the engine-vehicle-cooling system. A maximum fuel consumption reduction of 10.6% has been obtained using methanol and recovering heat from tail-pipe and EGR. However, considering also components and heat rejection performance, water steam, toluene and ethanol allow to obtain the best compromises between thermodynamic performance and engine-vehicle-cooling circuit impact.Keywords Waste heat recovery Á Organic rankine cycle Á Heavy-duty diesel engine Á Vehicle Á Off-highway Á Agricultural tractor List of symbols

show abstract

“…Various low-grade heat recovery technologies have been developed and are currently employed in diverse applications such as solar thermal power [1], geothermal energy [2,3], biomass energy [4,5], and engine exhaust gases [6]. Among existing technologies, the organic Rankine cycle (ORC) is the most widely utilized because of its simplicity, reliability and cost-effectiveness [7].…”

Section: Introductionmentioning

confidence: 99%

Slide Valves for Single-Screw Expanders Working Under Varied Operating Conditions

Zhi

Lei

et al. 2016

Energies

View full text Add to dashboard Cite

This paper fully describes the working principle of slide valves in single-screw expanders (SSEs). A geometric analysis of suction and volume ratio slide valves is presented to determine the relations between volume ratio, suction closure volume, discharge opening volume and slide valves displacement. An organic Rankine cycle (ORC) thermodynamic model with SSE integrated with slide valves is developed to analyze the power output of SSE and the net power output of ORC system and variation law of slide valves displacement. Analysis of a typical ORC system under changing operating conditions shows that the power output of the expander and the net output power of the ORC system with slide valves are much better than those without slide valves. When the condensing temperature is 40˝C and the waste availability is 80 kW, the increase in output power and net output power are approximately 3.4 kW and 5 kW, respectively. The presented geometric analysis of slide valves and the thermodynamic model integrated with slide valves can be used to provide a theoretical and technical basis for designing the slide valves of SSEs and the control strategies of slide valves under varied operating conditions.

show abstract

Review of organic Rankine cycles for internal combustion engine exhaust waste heat recovery

Cited by 395 publications

References 44 publications

Experimental Study of an Evaporator Heat Exchanger for a Rankine Cycle Vehicle Waste Heat Recovery System

Experimental Study of an Evaporator Heat Exchanger for a Rankine Cycle Vehicle Waste Heat Recovery System

A thermodynamic feasibility study of an Organic Rankine Cycle (ORC) for heavy-duty diesel engine waste heat recovery in off-highway applications

Slide Valves for Single-Screw Expanders Working Under Varied Operating Conditions

Contact Info

Product

Resources

About